As you see, plenty of women don't have symptoms AND . . .

Symptoms would not equal pregnancy. The P4 makes some women drowsy and nauseous from the time they start taking it, including me. A woman on another DE list I'm on had so much nausea and odor aversion before tx that everyone was scared for how ill she might become once she actually got pg, if she did. Take care, Maggie (in VA)